68051359 has 4 divisors (see below), whose sum is σ = 68469016. Its totient is φ = 67633704.

The previous prime is 68051353. The next prime is 68051381. The reversal of 68051359 is 95315086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68051359 - 2¹⁵ = 68018591 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68051353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208584 + ... + 208909.

It is an arithmetic number, because the mean of its divisors is an integer number (17117254).

Almost surely, 2^68051359 is an apocalyptic number.

68051359 is a deficient number, since it is larger than the sum of its proper divisors (417657).

68051359 is a wasteful number, since it uses less digits than its factorization.

68051359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417656.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 68051359 is about 8249.3247602455. The cubic root of 68051359 is about 408.2682440006.

The spelling of 68051359 in words is "sixty-eight million, fifty-one thousand, three hundred fifty-nine".